HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: New York City Mayor Bill de Blasio last week endorsed a proposal to close the jails on Rikers Island, which are notorious for their history of violence among inmates and brutality at the hands of guards. The facility has been the subject of multiple investigations by the city and federal government. The plan calls for Rikers to close over the next decade and its 7,500 prisoners to be placed in new jails in the city’s five boroughs.